I need a ready system that works on the web and is developed with ReactJs, I need to see a live demonstration before making any payment.
The system should read the ability to read and import up to 150k from a base of phones in excel or txt and store for future submissions, after inserting the phones that I choose if I will send text, audio, image or video and send ...
The system must have its own API to send up to 150k of whatsapp messages per day without being blocked. After sending successfully generate report with staus: sent, received and read and the possibility of importing everything for excel with graphics.
Design architecture with minimal security so that the system is not blocked by whatsapp or its updates.